To make tags, personal stamp or, simply, a drawing, foam stamps are awesome and cheap.
We need: a sheet of foam, cutter, scissors, pencil, thick cardboard or plastic plugs of the carafes or water bottles, glue and a lot of imagination.
We recommend that you put two layers of foam to have thick. Draw the print that you like on the foam and with the cutter cut the outline and some of the Interior details. When you already have it glues the foam on the plastic cap or, in reverse, glue a piece of cardboard to be able to get it right.